The pretensioner (BPT) is located in the driver and passenger’s lower side center pillar (as shown in above picture) together with a seat belt retractor unit. The pretensioner seat belt helps to reduce the severity of injury to the front seat occupant by retracting the seat belt webbing. This prevents the occupant from thrusting forward and hitting the steering wheel(driver) or the instrument panel (passenger) during an accident.
When open or increased resistance in the driver side pretensioner’s squib occurs.When the SRS warning light remains lit and a DTC code occurs, it means an open circuit, or increased resistance between control module and Pretensioner harnessarness.
Item | Detecting Condition | Possible Cause |
DTC Strategy | ● Driver Pretensioner open or increased resistance | ● Poor contact in the connector or wiring harness. ● Open circuit in wiring harness. ● Open circuit in DBPT squib. |
Enable Conditions | ● Ignition "ON" | |
Threshold Value | ● R_DPRET >= 6.0 Ohm | |
Diagnostic Time | Qualification | ● More than 2 sec remaining |
De-Qualification | ● More than10 sec remaining |
Test Condition | Resister (Ω) |
Ignition OFF | 1.9Ω ≤ R ≤ 4.7Ω |
